From RB Sailing Website www.rbsailing.blogspot.com.au/2015/09/quarter-ton-cup-1978.html
New Zealand had a design connection to the third placed boat, the Whiting-designed Australian entry Seaflyer, which finished with results of 5/7/2/1/3. Seaflyer was a development of Magic Bus, and of specially designed offset construction plywood and had a centreboard. Potentially Seaflyer was the fastest in the fleet, but a lack of tuning time probably cost the Australians the win. The boat had also been designed for optimum performance in light to moderate winds and flat seas. Unfortunately it blew hard for four of the five races, with vicious sea conditions common throughout, churned up by a combination of wind and racing tidal currents.
As it was, Seaflyer lost the series by a mere two placings in the final 210 mile race - strong winds and high seas in the last half of the race proved too much for the lightweight centreboarder and she wasn't able to hold off the determined challenge from the two top Japanese yachts.
Knowing they had to finish two places ahead of Magician V in the final race, Hugh Treharne and his crew drove Seaflyer to the limit, capsizing twice as they sought the achieve an overall victory.
Her first capsize came midway through the race, the result of a wild broach under spinnaker. The second was at night while sailing upwind - a rearing wave knocked the boat into an involuntary tack, while the crew were still stacked on the weather rail.
The Australians recovered from that more frightening episode to finish behind Kamikaze Express and Magician V (profile plan, left) to take out second overall.